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Stock-Based Compensation - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions |  |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | --- | ---
Apr. 22, 2021 | Sep. 10, 2019 | Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020 | Dec. 29, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Shares of common stock reserved for issuance (in shares) |  |  | 2,063,000 |  | 2,063,000 |  |
Closing price of the Company's common stock (in dollars per share) |  |  | $ 11.10 |  | $ 11.10 |  |
Weighted average exercise price, granted (in dollars per share) |  |  | $ 6.89 | $ 1.35 | $ 6.97 | $ 1.53 |
Averages contractual term |  |  |  |  | 10 years |  |
Expected dividend yield (as a percent) |  |  | 0.00% | 0.00% | 0.00% | 0.00% |
Unrecognized compensation cost, options |  |  | $ 2.4 |  | $ 2.4 |  |
Operating expenses weighted average period |  |  |  |  | 2 years 11 months 23 days |  |
RSUs |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Weighted average exercise price, granted (in dollars per share) |  |  |  |  | $ 8.00 |  |
Operating expenses weighted average period |  |  |  |  | 2 years 11 months 8 days |  |
Unrecognized compensation cost |  |  | $ 0.6 |  | $ 0.6 |  |
RSUs Vested (in shares) |  |  | 0 |  | 0 |  |
Maximum |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Average vesting term |  |  |  |  | 6 years |  |
Minimum |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Average vesting term |  |  |  |  | 4 years |  |
2017 Equity Plan |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Shares of common stock reserved for issuance (in shares) |  |  | 2,684 |  | 2,684 |  |
2017 Equity Plan | Maximum |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Shares of common stock authorized for issuance (in shares) |  |  |  |  |  |  | 24,204
2019 Incentive Plan |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Shares of common stock authorized for issuance (in shares) |  | 1,191,000 |  |  |  |  |
Shares of common stock reserved for issuance (in shares) |  |  | 463,000 |  | 463,000 |  |
Option term |  | 4 years |  |  |  |  |
Increase in number of shares available for future issuance under stock based awards (as a percent) |  | 5.00% |  |  |  |  |
2021 ESPP | Employee Stock |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Shares of common stock reserved for issuance (in shares) | 300,000 |  |  |  |  |  |
Cash earnings contributed per year | 20.00% |  |  |  |  |  |
Purchase price of common stock | 85.00% |  |  |  |  |  |

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